Something In my #5 Cylinder?

I have to tell you that I have personally seen a bunch of problems created by the programable boxes. I have seen two 7’s go bad right out of the gate and two others in two different cars flake out and both ended up with engine damage. That being said it is more expensive and you are leaving power on the table in the beginning, but I like the idea of starting out, learning engines and power adders with a simple box. Takes a bunch of variables out of the question during your learning curve. When you are comfortable with the motor and running a power adder you can upgrade to a more sophisticated box and pursue the power left on the table that lives near the edge.